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April 14, 20234:00 pm – 5:00 pm (CDT)

Critical Phenomena in Quantum Many-body Systems Far from Equilibrium


Mohammad Faghfoor Maghrebi (Michigan State University)


Joaquin Rodriguez Nieva



Mitchell Institute for Fundamental Physics & Astronomy

College Station, Texas 77843

Event Details

With recent experimental advances, we have entered a new era where quantum matter can be probed far from equilibrium. Yet, non-equilibrium many-body quantum systems are not anywhere as well understood as their equilibrium counterparts. In this talk, I will discuss a generic non-equilibrium setting where many-body quantum systems evolve upon a sudden quench. Examples are provided where quantum fluctuations lead to novel universal dynamics and critical phenomena absent in equilibrium. I will provide recent data from a trapped-ion quantum simulator---mimicking a long-range Ising model---that confirm these predictions. Finally, I will present a new paradigm in quench dynamics where correlation functions decay exponentially while entanglement is diverging, signaling a hidden quantum criticality.

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